Features:
1. Small PFM control DC/DC boost controller chip
2. Enter any DC voltage of 0.9V~5V, can be stable output 5V DC voltage, output current of 500~600 MA, 
for the mobile phone, camera, single-chip, digital products supply, Stable output 5V DC voltage. 3. USB female, can direct power to the USB interface device with USB female versatile
4. PCB size: 34(mm) x 15.2(mm) ultra-small size, installed in a variety of small equipment